Results for the UK general election on 12 December 2019 Elections contested by Sinn Féin
A general election to the 58th Parliament of the United Kingdom with an electorate of 47,562,702, having 32,014,110 valid votes and 117,919 invalid votes.
Read the House of Commons Library briefing.
| Constituency | Candidate | Electorate | Turnout | Votes | Vote share | Vote change | Position |
| West Tyrone | BEGLEY, Órfhlaith | 66,259 | 62.2% | 16,544 | 40.2% | -10.6% | 1st |
| Upper Bann | O'DOWD, John | 82,887 | 60.4% | 12,291 | 24.6% | -3.4% | 2nd |
| Strangford | CARLIN, Ryan | 66,928 | 56.0% | 555 | 1.5% | -1.3% | 7th |
| South Down | HAZZARD, Chris | 79,175 | 62.9% | 16,137 | 32.4% | -7.5% | 1st |
| South Antrim | KEARNEY, Declan | 71,711 | 59.9% | 4,887 | 11.4% | -6.7% | 4th |
| North Antrim | MCSHANE, Cara | 77,134 | 57.1% | 5,632 | 12.8% | -3.5% | 4th |
| Newry and Armagh | BRADY, Mickey | 81,226 | 62.5% | 20,287 | 40.0% | -8.0% | 1st |
| Mid Ulster | MOLLOY, Francie | 70,449 | 63.3% | 20,473 | 45.9% | -8.6% | 1st |
| Lagan Valley | MCCLEAVE, Gary | 75,735 | 60.0% | 1,098 | 2.4% | -1.1% | 5th |
| Foyle | MCCALLION, Elisha | 74,346 | 63.4% | 9,771 | 20.7% | -19.0% | 2nd |
| Fermanagh and South Tyrone | GILDERNEW, Michelle | 72,848 | 69.7% | 21,986 | 43.3% | -3.9% | 1st |
| East Londonderry | NICHOLL, Dermot | 69,246 | 56.8% | 6,128 | 15.6% | -10.9% | 3rd |
| East Antrim | MCMULLAN, Oliver | 64,830 | 57.5% | 2,120 | 5.7% | -3.6% | 4th |
| Belfast West | MASKEY, Paul | 65,644 | 59.1% | 20,866 | 53.8% | -12.9% | 1st |
| Belfast North | FINUCANE, John | 72,225 | 67.9% | 23,078 | 47.1% | 5.4% | 1st |
Turnout as calculated by the House of Commons Library, is the total number of votes cast and not spoiled, divided by the size of the electorate.
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.